[2019-(1/2+2/3+3/4+...2018/2019)]÷(1+1/2+1/3+.. 1/2019)= n/2019

Răspuns :

Răspuns:

[2019-(2+6+12+4037)]:(1+2+3+2019)=2019

[2019-(8+4049)]:(3+2022)=2019

(2019-4057:2025)=2019

(2019-2,50)=2019

2017

2019-2017

2